5645023 has 4 divisors (see below), whose sum is σ = 5689600. Its totient is φ = 5600448.

The previous prime is 5645011. The next prime is 5645047. The reversal of 5645023 is 3205465.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3205465 = 5 ⋅641093.

It is a cyclic number.

It is not a de Polignac number, because 5645023 - 2¹³ = 5636831 is a prime.

5645023 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5645063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22098 + ... + 22351.

It is an arithmetic number, because the mean of its divisors is an integer number (1422400).

Almost surely, 2^5645023 is an apocalyptic number.

5645023 is a deficient number, since it is larger than the sum of its proper divisors (44577).

5645023 is a wasteful number, since it uses less digits than its factorization.

5645023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44576.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 5645023 is about 2375.9257143269. The cubic root of 5645023 is about 178.0554365898.

The spelling of 5645023 in words is "five million, six hundred forty-five thousand, twenty-three".